suksa -suk- gismu

x₁ (event/state) is sudden/sharply changes at stage/point x₂ in process/property/function x₃.

Also abrupt, discontinuous. See also spaji, vitci, vlile.

jbovlaste

In notes:

spaji: x₁ (event/action abstract) surprises/startles/is unexpected [and generally sudden] to x₂.
vitci: x₁ is irregular/occasional/intermittent in property/action/aspect x₂.
vlile: x₁ is an event/state/act of violence.